To repair that leak at a coupling---get a repair coupling. It's a telescopic coupling. Known as a kwik-fix or slip-fix. Supply house should know what you need. May need a regular coupling to complete the repair. Maybe can find it at the hdwe./home improvement place. See ya----
Two small boys talking about their summer...one relates to the other one, "We went all sorts of places on our vacation until my dad finally asked for directions."